Notion

Notion's strength is that it is a construction kit, not a fixed app: pages, databases and relations combine into whatever workspace a team needs — wiki, CRM, project tracker, documentation — with a clean, minimalist surface.

Where the flexibility turns against you

• It becomes overwhelmingly complex to manage as the workspace grows — someone ends up owning "Notion architecture" as a job.
• Offline mode is still unreliable.
• Search is sluggish in large workspaces, exactly when you rely on it.

Who should use it

Startups, students and productivity enthusiasts who want one flexible tool and are willing to invest in structuring it well. Teams that want an opinionated tool that just works for one job — issue tracking, docs — may be better served by a dedicated app that makes those decisions for them.